sory but . This answer was not enough to meWhat part are you having problem with? This is pretty basic, and it is against policy for us to do your homework for you. ABC is a 3 input AND gate, ABC and DEF are 6 inputs, qty 2 3 input AND gates and a 2 input OR gate. Generally the convention is to put an inverting signal where the input is inverted, but it can as easily be an inverter.